Upper Yakima HUC8 17030001
A 5,540 km² sub-basin of the Pacific Northwest region in WA. Drought coverage is from the US Drought Monitor (map of 2026-10-13); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
70
Moderate
Drought index
190
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 1 reporting
Median flow
82%
p33 of record
Water assets
5,721
136 springs · 2,523 wells
USGS gauges (1)
- YAKIMA RIVER AT UMTANUM, WA12484500709 cfsp33 · normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-22 | 190 | 0 | 0/1 | p33 |
| 2026-10-21 | 190 | 0 | 0/1 | p35 |
| 2026-10-20 | 190 | 0 | 0/1 | p35 |
| 2026-10-19 | 190 | 0 | 1/1 | p23 |
| 2026-10-18 | 190 | 0 | 1/1 | p23 |
| 2026-10-17 | 190 | 0 | 1/1 | p24 |
| 2026-10-16 | 190 | 0 | 1/1 | p24 |
| 2026-10-15 | 190 | 0 | 1/1 | p19 |
| 2026-10-14 | 190 | 0 | 1/1 | p20 |
| 2026-10-13 | 190 | 0 | 1/1 | p21 |
| 2026-10-12 | 190 | 0 | 1/1 | p21 |
| 2026-10-11 | 190 | 0 | 1/1 | p19 |
| 2026-10-10 | 190 | 0 | 1/1 | p19 |
| 2026-10-09 | 190 | 0 | 1/1 | p16 |
Top water assets
- 69Howard Creekriver
- 69South Fork Manastash Creekriver
- 69South Fork Manastash Creekriver
- 69Spade Creekriver
- 69DeRoux Creekriver
- 69Spade Creekriver
- 69Fortune Creekriver
- 69Fortune Creekriver
- 69DeRoux Creekriver
- 69Naneum Creekriver